Michelangelo

Michelangelo worked for seven popes in Rome.

An excerpt from the article 32 facts about Michelangelo
The first of these was Julius II, for whom Buonarroti began a tomb that was to consist of about 40 statues. However, he was forced to interrupt this work to make a bronze statue of the Pope in Bologna. After a few years, he returned to work on Julius II's tomb. Between 1508 and 1512, he worked on the frescoes in the Sistine Chapel.